Note 12 - Income Taxes Valuation Allowance (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Valuation Allowance, Amount - Begin	$ 191.3	$ 182.5	$ 182.5
reductions in valuation allowance for net operating losses previously forgone	3.6	0	0.1
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	(4.8)	8.8	0.1
Valuation Allowance, Amount - End	182.9	191.3	182.5
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 8.4